#3F93BA#3F93BA
#3F93BA is a light, moderate cyan. Relative luminance 0.255; OKLCH L 62.8% C 0.099 H 231.5°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).
Color values
| HEX | #3F93BA |
|---|---|
| RGB | rgb(63, 147, 186) |
| HSL | hsl(199, 49%, 49%) |
| HSV | hsv(199, 66%, 73%) |
| CMYK | cmyk(66.1%, 21%, 0%, 27.1%) |
| CIE-LAB | lab(57.53, -13.02, -27.77) |
| CIE-LCH | lch(57.53, 30.67, 244.88°) |
| OKLab | oklab(62.83% -0.0619 -0.0778) |
| OKLCH | oklch(62.83% 0.099 231.5) |
| XYZ | xyz(21.3431, 25.4671, 50.2357) |
| Luminance | 0.2547 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dirty Blue
#3F829D
ΔE00 6.82
Dusty Blue
#5A86AD
ΔE00 7.21
Water Blue
#0E87CC
ΔE00 7.38
Cool Blue
#4984B8
ΔE00 7.65
Off Blue
#5684AE
ΔE00 7.72
Steel Blue
#4682B4
ΔE00 7.76
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3F93BA #BA663F
analogous
#3FBAA4 #3F93BA #3F56BA
triadic
#3F93BA #BA3F93 #93BA3F
tetradic
#3F93BA #A43FBA #BA663F #56BA3F
square
#3F93BA #A43FBA #BA663F #56BA3F
split-complementary
#3F93BA #BA3F56 #BAA43F
monochromatic
#204B5F #306F8C #3F93BA #6AADCC #97C6DC
Accessibility & contrast
On white
3.45
#3F93BA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.09
#3F93BA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3F93BA
6.09:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3F93BA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3F93BA | 1.00 | 3.45 | 6.09 | 6.09 |
| #FFFFFF | 3.45 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.09 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.09 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8091BC
Deuteranopia (green-blind)
#6E85B9
Tritanopia (blue-blind)
#009EA0
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #3f93ba; /* rgb */ color: rgb(63, 147, 186); /* oklch */ color: oklch(62.8% 0.099 231.5);
Tailwind
colors: {
custom: {
50: '#81b2cf',
500: '#3f93ba',
950: '#000000',
},
}SCSS
$custom: #3f93ba; $custom-light: #81b2cf; $custom-dark: #000000;
JSON
{
"hex": "#3f93ba",
"rgb": {
"r": 63,
"g": 147,
"b": 186
},
"hsl": {
"h": 199.024,
"s": 49.398,
"l": 48.824
},
"oklch": {
"l": 0.62828,
"c": 0.0994,
"h": 231.5
},
"luminance": 0.25469
}Semantic roles & 50–950 ramp
primary
#3F93BA
secondary
#C8A08D
accent
#7B4FD9
background
#F8FAFC
surface
#F0F5F9
border
#CBCFD2
text
#0B1113
muted
#7C8082